chore: specify correct image sizes, add alt tag

src/components/Footer.astro

@@ -3,9 +3,9 @@
     <a href="http://[201:80ed:6eeb:aea4:cdc0:c836:2831:f2dd]">
       <img
         src="/icons/leaf-solid.svg"
-        width="18px"
-        height="18px"
-        alt="Листик, похожая на иконку Yggdrasil"
+        width="18"
+        height="18"
+        alt="Листик, похожий на иконку Yggdrasil"
       />
       Yggdrasil
     </a>
@@ -13,8 +13,8 @@
     <a href="https://git.comfycamp.space/lumin/comfycamp" target="_blank">
       <img
         src="/icons/git.svg"
-        width="18px"
-        height="18px"
+        width="18"
+        height="18"
         alt="Git logo"
       />
       Исходный код
@@ -25,8 +25,8 @@
     <a href="https://m.comfycamp.space/@lumin" rel="me" target="_blank">
       <img
         src="/icons/mastodon.svg"
-        width="18px"
-        height="18px"
+        width="18"
+        height="18"
         alt="Mastodon logo"
       />
       Mastodon
@@ -34,8 +34,8 @@
     <a href="mailto:admin@comfycamp.space" target="_blank">
       <img
         src="/icons/envelope-solid.svg"
-        width="18px"
-        height="18px"
+        width="18"
+        height="18"
         alt="Email icon"
       />
       admin@comfycamp.space
@@ -45,8 +45,8 @@
     <a href="https://matrix.to/#/@lumin:matrix.comfycamp.space" target="_blank">
       <img
         src="/icons/matrix.svg"
-        width="18px"
-        height="18px"
+        width="18"
+        height="18"
         alt="Matrix logo"
       />
       @lumin:matrix.comfycamp.space
@@ -54,8 +54,8 @@
     <a href="xmpp://lumin@xmpp.comfycamp.space" target="_blank">
       <img
         src="/icons/xmpp.svg"
-        width="18px"
-        height="18px"
+        width="18"
+        height="18"
         alt="XMPP logo"
       />
       lumin@xmpp.comfycamp.space

src/components/Tag.astro

@@ -7,7 +7,7 @@ const { name, slug } = Astro.props
 ---
 
 <a class="tag" href={`/tags/${slug}`}>
-  <img width="12" height="12" src="/icons/tag.svg" />
+  <img width="12" height="12" src="/icons/tag.svg" alt="Тег" />
   {name}
 </a>